Results 31 to 40 of about 3,891 (199)
Frontiers in Microbiology, 2019 Deep geologic repositories (DGR) in Canada are designed to contain and isolate low- and intermediate-level radioactive waste. Microbial degradation of the waste potentially produces methane, carbon dioxide and hydrogen gas.
Danielle Beaton +4 more
doaj +1 more source
Alamethicin Suppresses Methanogenesis and Promotes Acetogenesis in Bioelectrochemical Systems [PDF]
Applied and Environmental Microbiology, 2015 ABSTRACT Microbial electrosynthesis (MES) systems with mixed cultures often generate a variety of gaseous and soluble chemicals. Methane is the primary end product in mixed-culture MES because it is the thermodynamically most favorable reduction product of CO 2 .
Zhu, Xiuping +3 more
openaire +3 more sources
Frontiers in Microbiology, 2020 Acetogens have the ability to fixate carbon during fermentation by employing the Wood-Ljungdahl pathway (WLP), which is highly conserved across Bacteria and Archaea.
Laura C. Valk +7 more
doaj +1 more source
, 2021 The methylene-tetrahydrofolate reductase (MTHFR) is a key enzyme in acetogenic CO2 fixation. The MetVF-type enzyme has been purified from four different species and the physiological electron donor was hypothesized to be reduced ferredoxin.
Kremp, Florian +5 more
core +1 more source
A theoretical comparison between two ruminal electron sinks
Frontiers in Microbiology, 2013 Dihydrogen accumulation resulting from methanogenesis inhibition in the rumen is an energy loss and can inhibit fermentation. The objective of this analysis was to compare the energetic and nutritional consequences of incorporating H2 into reductive ...
Emilio M. Ungerfeld
doaj +1 more source
Enzymology of the Wood–Ljungdahl Pathway of Acetogenesis [PDF]
Annals of the New York Academy of Sciences, 2008 The biochemistry of acetogenesis is reviewed. The microbes that catalyze the reactions that are central to acetogenesis are described and the focus is on the enzymology of the process. These microbes play a key role in the global carbon cycle, producing over 10 trillion kilograms of acetic acid annually.
openaire +3 more sources
Attempted induction of reductive acetogenesis into the rumen fermentation in vitro [PDF]
Reproduction Nutrition Development, 1996 Rumen and caecal contents, obtained from slaughterhouse cattle and rumen contents obtained from a fistulated wether were incubated in vitro with ground hay in the presence and absence of, respectively, casein hydrolysate and mucin. Differences in stoichiometry of rumen and caecal fermentations, indicative of reductive acetogenesis in the caecum, were ...
Demeyer, Di, Fiedler, D, de Graeve, Kg
openaire +3 more sources
Atribacteria Reproducing over Millions of Years in the Atlantic Abyssal Subseafloor
mBio, 2020 How microbial metabolism is translated into cellular reproduction under energy-limited settings below the seafloor over long timescales is poorly understood.
Aurèle Vuillemin +7 more
doaj +1 more source
, 2022 Metal oxides are wildly studied to enhance anaerobic digestion and the methanogenic process, which is generally interpreted by increased direct interspecies electron transfer (DIET). Yet microbial mechanisms involved are under debate.
Yu, Jiafeng +13 more
core +1 more source
gen. nov. sp. nov. indicate that termite gut treponemes evolved from non‐acetogenic spirochetes in cockroaches [PDF]
, 2021 Spirochetes of the genus Treponema are surprisingly abundant in termite guts, where they play an important role in reductive acetogenesis. Although they occur in all termites investigated, their evolutionary origin is obscure. Here, we isolated the first
Brune, A. +17 more
core +1 more source